Call just once all these sed/awk/cut etc. when finding mac addresses.
From 2437e980e6a8f0bcd123ddab077f00908069d379 Mon Sep 17 00:00:00 2001
From: Aleksey Senin <aleks...@voltaire.com>
Date: Thu, 8 Apr 2010 11:53:07 +0300
Subject: [PATCH] Optimized when looking ethernet data.
I have two adapters with two ports on each one. This optimization gives me
6 sec. run-time instead of 19 sec.
Signed-off-by: Aleksey Senin <aleks...@voltaire.com>
---
ofed_scripts/ibdev2netdev | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/ofed_scripts/ibdev2netdev b/ofed_scripts/ibdev2netdev
index b436c05..adb5eba 100755
--- a/ofed_scripts/ibdev2netdev
+++ b/ofed_scripts/ibdev2netdev
@@ -30,12 +30,12 @@ function find_mac()
for port in $ports; do
gids=$(ls /sys/class/infiniband/$ibdev/ports/$port/gids)
for gid in $gids; do
- first=$(cat /sys/class/infiniband/$ibdev/ports/$port/gids/$gid | cut -b 21-22)
+ pmac=$(cat /sys/class/infiniband/$ibdev/ports/$port/gids/$gid | cut -b 21-24,26-27,33-34,36-)
+ first=${pmac:0:2}
+ pmac=${pmac:2}
first=$(( first ^ 2 ))
first=$(printf "%02x" $first)
- second=$(cat /sys/class/infiniband/$ibdev/ports/$port/gids/$gid | cut -b 21- | sed -e 's/://g' | cut -b 3-6)
- third=$(cat /sys/class/infiniband/$ibdev/ports/$port/gids/$gid | cut -b 21- | sed -e 's/://g' | cut -b 11-)
- pmac=$first$second$third
+ pmac=$first$pmac
if [ x$pmac == x$1 ]; then
print_line $ibdev $port $2
fi
--
1.6.4.2
